Infatuated and obsessed with a fitness instructor, Natalie hatches a devious plan to eliminate everyone in the young woman's life so she can have her all to herself.

After receiving fertile eggs from a donor, Rebecca and Caleb are finally able to have a child and start a family. Several years later, a strange woman appears in their life, and is oddly drawn to their daughter. The egg donor has returned–and she wants what is “rightfully” hers.

A man unknowingly hires a psychotic instructor to teach his 10-year-old daughter how to swim.

Dr. Veronica West had a passionate relationship with a troubled former patient who when she broke it off, he got drunk, and drove his car into a tree, killing himself. She has spent the last year keeping it all secret, or so she thinks.

Novelist Sarah becomes a prime suspect in a homicide after a one-night tryst with a mysterious stranger who turns up dead at her summer home.

Violet has carried a torch for Garrett, the love of her life, ever since they dated in high school 20 years ago. After moving in next door to Garrett, she becomes determined to destroy his marriage and take his wife's place.

A clumsy maid of honor gets help from her handsome nemesis when things go awry at her best friend’s Costa Rican wedding.

When Lisa’s father is killed in a hit and run, we discover that he has a secret daughter from his first marriage. Her name is Marie and she is a convicted murderer, out on early release from prison, and driven by a single purpose–revenge. Living under a secret identity as Bethany, Marie has connived her way to living and working close to Lisa, lurking and planning her revenge as payment for the life she feels cheated out of–a life she feels their father unfairly gave to Lisa. Marie has set a deadly trap for Lisa to take back what she is owed, leaving Lisa, her mother and their friends to fight for their lives against the murderous sister she never knew.